Home / 353,776,912.40-531,001,291.80-217,728,016.40

Finding the Fourth Proportional to 353,776,912.40, 531,001,291.80 and 217,728,016.40

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Solution

The fourth proportional to 353,776,912.40, 531,001,291.80 and 217,728,016.40 is: 326,798,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,776,912.40 : 531,001,291.80 = 217,728,016.40 : x
  2. Step 2: Convert to fraction form
    353,776,912.40/531,001,291.80 = 217,728,016.40/x
  3. Step 3: Cross multiply
    353,776,912.40x = 531,001,291.80 × 217,728,016.40
  4. Step 4: Simplify right side
    353,776,912.40x = 115,613,857,969,451,584
  5. Step 5: Solve for x
    x = 115,613,857,969,451,584/353,776,912.40
  6. Step 6: Final answer
    x = 326,798,764.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.